A couple of people sent me messages asking for a buggy, half working version of the program a few days ago, but the code's been so much a mess (I was overhauling the collisions system. Bots actually collide more or less correctly now!) I hadn't been able to send one out. I just got it working a few minutes ago, so its ready for people to play with.
Everyone who still wants one, send me a PM or email with an address I can send it to.